Multifunctional smart toothbrush



FIG. 1 is a front view of a multifunctional smart toothbrush showing my new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and

FIG. 7 is a front perspective view thereof;

FIG. 8 is a bottom perspective view thereof; and,

FIG. 9 is an enlarged view of portion 9 shown in FIG. 5. 

CLAIM The ornamental design for a multifunctional smart toothbrush, as shown and described. 